Issue #11093 has been reported by Daniel Serodio.

----------------------------------------
Bug #11093: Segmentation fault with Ruby 2.1.6 and ffi 1.9.8
https://bugs.ruby-lang.org/issues/11093

* Author: Daniel Serodio
* Status: Open
* Priority: Normal
* Assignee: 
* ruby -v: ruby 2.1.6p336 (2015-04-13 revision 50298) [x86_64-linux-gnu]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
----------------------------------------
This is my first Ruby bug report, please forgive me it this is not the proper place for this.

$ ruby -rffi -e 'puts Hi'
/opt/ruby-2.1.6/lib64/ruby/gems/2.1.0/gems/ffi-1.9.8/lib/ffi/types.rb:67: [BUG] Segmentation fault at 0x00000000000008
ruby 2.1.6p336 (2015-04-13 revision 50298) [x86_64-linux-gnu]

-- Control frame information -----------------------------------------------
c:0016 p:---- s:0077 e:000076 CFUNC  :initialize
c:0015 p:---- s:0075 e:000074 CFUNC  :new
c:0014 p:0128 s:0071 e:000067 METHOD /opt/ruby-2.1.6/lib64/ruby/gems/2.1.0/gems/ffi-1.9.8/lib/ffi/types.rb:67
c:0013 p:0019 s:0063 e:000059 METHOD /opt/ruby-2.1.6/lib64/ruby/gems/2.1.0/gems/ffi-1.9.8/lib/ffi/types.rb:41
c:0012 p:0395 s:0055 e:000054 CLASS  /opt/ruby-2.1.6/lib64/ruby/gems/2.1.0/gems/ffi-1.9.8/lib/ffi/types.rb:167
c:0011 p:0009 s:0053 e:000052 TOP    /opt/ruby-2.1.6/lib64/ruby/gems/2.1.0/gems/ffi-1.9.8/lib/ffi/types.rb:34 [FINISH]
c:0010 p:---- s:0051 e:000050 CFUNC  :require
c:0009 p:0115 s:0047 e:000046 METHOD /opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55
c:0008 p:0015 s:0037 e:000036 TOP    /opt/ruby-2.1.6/lib64/ruby/gems/2.1.0/gems/ffi-1.9.8/lib/ffi/ffi.rb:32 [FINISH]
c:0007 p:---- s:0035 e:000034 CFUNC  :require
c:0006 p:0115 s:0031 e:000030 METHOD /opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55
c:0005 p:0197 s:0021 e:000020 TOP    /opt/ruby-2.1.6/lib64/ruby/gems/2.1.0/gems/ffi-1.9.8/lib/ffi.rb:21 [FINISH]
c:0004 p:---- s:0019 e:000018 CFUNC  :require
c:0003 p:0073 s:0015 e:000014 RESCUE /opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:135
c:0002 p:0444 s:0012 e:000011 METHOD /opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:144 [FINISH]
c:0001 p:0000 s:0002 E:000758 TOP    [FINISH]

-- Ruby level backtrace information ----------------------------------------
/opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:144:in `require'
/opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:135:in `rescue in require'
/opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:135:in `require'
/opt/ruby-2.1.6/lib64/ruby/gems/2.1.0/gems/ffi-1.9.8/lib/ffi.rb:21:in `<top (required)>'
/opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
/opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
/opt/ruby-2.1.6/lib64/ruby/gems/2.1.0/gems/ffi-1.9.8/lib/ffi/ffi.rb:32:in `<top (required)>'
/opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
/opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
/opt/ruby-2.1.6/lib64/ruby/gems/2.1.0/gems/ffi-1.9.8/lib/ffi/types.rb:34:in `<top (required)>'
/opt/ruby-2.1.6/lib64/ruby/gems/2.1.0/gems/ffi-1.9.8/lib/ffi/types.rb:167:in `<module:FFI>'
/opt/ruby-2.1.6/lib64/ruby/gems/2.1.0/gems/ffi-1.9.8/lib/ffi/types.rb:41:in `typedef'
/opt/ruby-2.1.6/lib64/ruby/gems/2.1.0/gems/ffi-1.9.8/lib/ffi/types.rb:67:in `find_type'
/opt/ruby-2.1.6/lib64/ruby/gems/2.1.0/gems/ffi-1.9.8/lib/ffi/types.rb:67:in `new'
/opt/ruby-2.1.6/lib64/ruby/gems/2.1.0/gems/ffi-1.9.8/lib/ffi/types.rb:67:in `initialize'

-- C level backtrace information -------------------------------------------
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x180f6f) [0x7fcd739fff6f] addr2line.c:412
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x1816c0) [0x7fcd73a006c0] prelude.c:52
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x6540c) [0x7fcd738e440c] load.c:70
/opt/ruby-2.1.6/lib64/libruby.so.2.1(rb_bug+0xb8) [0x7fcd738e4718] load.c:120
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x113df5) [0x7fcd73992df5] string.c:2842
/lib64/libpthread.so.0(+0xf710) [0x7fcd73671710] AbstractMemory.c:248
/opt/ruby-2.1.6/lib64/libruby.so.2.1(st_lookup+0x1f) [0x7fcd7399b0df] string.c:135
/opt/ruby-2.0.0-247/lib/libruby.so.2.0(+0x158f9f) [0x7fcd6bbdaf9f] vm_method.c:182
/opt/ruby-2.0.0-247/lib/libruby.so.2.0(rb_funcall2+0x12d) [0x7fcd6bbdd71d] vm_eval.c:523
/opt/ruby-2.1.6/lib64/ruby/gems/2.1.0/gems/ffi-1.9.8/lib/ffi_c.so(+0xab24) [0x7fcd6c0e1b24] MappedType.c:86
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x16e135) [0x7fcd739ed135] vm_eval.c:44
/opt/ruby-2.1.6/lib64/libruby.so.2.1(rb_funcallv+0x1b5) [0x7fcd739ee265] ./include/ruby/ruby.h:1507
/opt/ruby-2.1.6/lib64/libruby.so.2.1(rb_class_new_instance+0x30) [0x7fcd73937e30] parse.y:5293
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x16baea) [0x7fcd739eaaea] vm_insnhelper.c:1628
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x180016) [0x7fcd739ff016] addr2line.c:839
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x171cd9) [0x7fcd739f0cd9] vm_backtrace.c:135
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x1759dd) [0x7fcd739f49dd] thread.c:2071
/opt/ruby-2.1.6/lib64/libruby.so.2.1(rb_iseq_eval+0x129) [0x7fcd739f56b9] thread_pthread.c:1009
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x6b1e5) [0x7fcd738ea1e5] file.c:5702
/opt/ruby-2.1.6/lib64/libruby.so.2.1(rb_require_safe+0x86c) [0x7fcd738ec1fc] file.c:2752
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x16baea) [0x7fcd739eaaea] vm_insnhelper.c:1628
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x171cd9) [0x7fcd739f0cd9] vm_backtrace.c:135
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x1759dd) [0x7fcd739f49dd] thread.c:2071
/opt/ruby-2.1.6/lib64/libruby.so.2.1(rb_iseq_eval+0x129) [0x7fcd739f56b9] thread_pthread.c:1009
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x6b1e5) [0x7fcd738ea1e5] file.c:5702
/opt/ruby-2.1.6/lib64/libruby.so.2.1(rb_require_safe+0x86c) [0x7fcd738ec1fc] file.c:2752
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x16baea) [0x7fcd739eaaea] vm_insnhelper.c:1628
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x171cd9) [0x7fcd739f0cd9] vm_backtrace.c:135
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x1759dd) [0x7fcd739f49dd] thread.c:2071
/opt/ruby-2.1.6/lib64/libruby.so.2.1(rb_iseq_eval+0x129) [0x7fcd739f56b9] thread_pthread.c:1009
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x6b1e5) [0x7fcd738ea1e5] file.c:5702
/opt/ruby-2.1.6/lib64/libruby.so.2.1(rb_require_safe+0x86c) [0x7fcd738ec1fc] file.c:2752
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x16baea) [0x7fcd739eaaea] vm_insnhelper.c:1628
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x180016) [0x7fcd739ff016] addr2line.c:839
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x171cd9) [0x7fcd739f0cd9] vm_backtrace.c:135
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x1759dd) [0x7fcd739f49dd] thread.c:2071
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x16def9) [0x7fcd739ecef9] vm_eval.c:560
/opt/ruby-2.1.6/lib64/libruby.so.2.1(rb_funcallv+0x1b5) [0x7fcd739ee265] ./include/ruby/ruby.h:1507
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x11075b) [0x7fcd7398f75b] strftime.c:498
/opt/ruby-2.1.6/lib64/libruby.so.2.1(+0x112d0d) [0x7fcd73991d0d] ./include/ruby/ruby.h:1512
/opt/ruby-2.1.6/lib64/libruby.so.2.1(ruby_process_options+0x6d) [0x7fcd7399279d] string.c:6614
/opt/ruby-2.1.6/lib64/libruby.so.2.1(ruby_options+0xda) [0x7fcd738e8d4a] proc.c:581
ruby() [0x4008c3]
/lib64/libc.so.6(__libc_start_main+0xfd) [0x7fcd72a25d1d]
ruby() [0x4007b9]

-- Other runtime information -----------------------------------------------

* Loaded script: -e

* Loaded features:

    0 enumerator.so
    1 /opt/ruby-2.1.6/lib64/ruby/2.1.0/x86_64-linux-gnu/enc/encdb.so
    2 /opt/ruby-2.1.6/lib64/ruby/2.1.0/x86_64-linux-gnu/enc/trans/transdb.so
    3 /opt/ruby-2.1.6/lib64/ruby/2.1.0/x86_64-linux-gnu/rbconfig.rb
    4 /opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/compatibility.rb
    5 /opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/defaults.rb
    6 /opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/deprecate.rb
    7 /opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/errors.rb
    8 /opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/version.rb
    9 /opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/requirement.rb
   10 /opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/platform.rb
   11 /opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/basic_specification.rb
   12 /opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/stub_specification.rb
   13 /opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/util/stringio.rb
   14 /opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/specification.rb
   15 /opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/exceptions.rb
   16 /opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/core_ext/kernel_gem.rb
   17 thread.rb
   18 /opt/ruby-2.1.6/lib64/ruby/2.1.0/x86_64-linux-gnu/thread.so
   19 /opt/ruby-2.1.6/lib64/ruby/2.1.0/monitor.rb
   20 /opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/core_ext/kernel_require.rb
   21 /opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems.rb
   22 /opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/path_support.rb
   23 /opt/ruby-2.1.6/lib64/ruby/2.1.0/rubygems/dependency.rb
   24 
   25 /opt/ruby-2.1.6/lib64/ruby/gems/2.1.0/gems/ffi-1.9.8/lib/ffi/platform.rb

* Process memory map:

00400000-00401000 r-xp 00000000 fd:00 1184785                            /opt/ruby-2.1.6/bin/ruby
00600000-00601000 rw-p 00000000 fd:00 1184785                            /opt/ruby-2.1.6/bin/ruby
00601000-00b71000 rw-p 00000000 00:00 0                                  [heap]
7fcd6b86c000-7fcd6b882000 r-xp 00000000 fd:00 390915                     /lib64/libgcc_s-4.4.7-20120601.so.1
7fcd6b882000-7fcd6ba81000 ---p 00016000 fd:00 390915                     /lib64/libgcc_s-4.4.7-20120601.so.1
7fcd6ba81000-7fcd6ba82000 rw-p 00015000 fd:00 390915                     /lib64/libgcc_s-4.4.7-20120601.so.1
7fcd6ba82000-7fcd6bca7000 r-xp 00000000 fd:00 400906                     /opt/ruby-2.0.0-247/lib/libruby.so.2.0.0
7fcd6bca7000-7fcd6bea7000 ---p 00225000 fd:00 400906                     /opt/ruby-2.0.0-247/lib/libruby.so.2.0.0
7fcd6bea7000-7fcd6beaf000 rw-p 00225000 fd:00 400906                     /opt/ruby-2.0.0-247/lib/libruby.so.2.0.0
7fcd6beaf000-7fcd6becf000 rw-p 00000000 00:00 0 
7fcd6becf000-7fcd6bed6000 r-xp 00000000 fd:00 785399                     /usr/lib64/libffi.so.5.0.6
7fcd6bed6000-7fcd6c0d6000 ---p 00007000 fd:00 785399                     /usr/lib64/libffi.so.5.0.6
7fcd6c0d6000-7fcd6c0d7000 rw-p 00007000 fd:00 785399                     /usr/lib64/libffi.so.5.0.6
7fcd6c0d7000-7fcd6c0f6000 r-xp 00000000 fd:00 1440118                    /opt/ruby-2.1.6/lib64/ruby/gems/2.1.0/gems/ffi-1.9.8/lib/ffi_c.so
7fcd6c0f6000-7fcd6c2f5000 ---p 0001f000 fd:00 1440118                    /opt/ruby-2.1.6/lib64/ruby/gems/2.1.0/gems/ffi-1.9.8/lib/ffi_c.so
7fcd6c2f5000-7fcd6c2f7000 rw-p 0001e000 fd:00 1440118                    /opt/ruby-2.1.6/lib64/ruby/gems/2.1.0/gems/ffi-1.9.8/lib/ffi_c.so
7fcd6c2f7000-7fcd6c2fa000 r-xp 00000000 fd:00 1442965                    /opt/ruby-2.1.6/lib64/ruby/2.1.0/x86_64-linux-gnu/thread.so
7fcd6c2fa000-7fcd6c4f9000 ---p 00003000 fd:00 1442965                    /opt/ruby-2.1.6/lib64/ruby/2.1.0/x86_64-linux-gnu/thread.so
7fcd6c4f9000-7fcd6c4fa000 rw-p 00002000 fd:00 1442965                    /opt/ruby-2.1.6/lib64/ruby/2.1.0/x86_64-linux-gnu/thread.so
7fcd6c4fa000-7fcd6c4fc000 r-xp 00000000 fd:00 1442922                    /opt/ruby-2.1.6/lib64/ruby/2.1.0/x86_64-linux-gnu/enc/trans/transdb.so
7fcd6c4fc000-7fcd6c6fc000 ---p 00002000 fd:00 1442922                    /opt/ruby-2.1.6/lib64/ruby/2.1.0/x86_64-linux-gnu/enc/trans/transdb.so
7fcd6c6fc000-7fcd6c6fd000 rw-p 00002000 fd:00 1442922                    /opt/ruby-2.1.6/lib64/ruby/2.1.0/x86_64-linux-gnu/enc/trans/transdb.so
7fcd6c6fd000-7fcd6c6ff000 r-xp 00000000 fd:00 1442880                    /opt/ruby-2.1.6/lib64/ruby/2.1.0/x86_64-linux-gnu/enc/encdb.so
7fcd6c6ff000-7fcd6c8fe000 ---p 00002000 fd:00 1442880                    /opt/ruby-2.1.6/lib64/ruby/2.1.0/x86_64-linux-gnu/enc/encdb.so
7fcd6c8fe000-7fcd6c8ff000 rw-p 00001000 fd:00 1442880                    /opt/ruby-2.1.6/lib64/ruby/2.1.0/x86_64-linux-gnu/enc/encdb.so
7fcd6c8ff000-7fcd72790000 r--p 00000000 fd:00 783853                     /usr/lib/locale/locale-archive
7fcd72790000-7fcd72801000 r-xp 00000000 fd:00 390921                     /lib64/libfreebl3.so
7fcd72801000-7fcd72a00000 ---p 00071000 fd:00 390921                     /lib64/libfreebl3.so
7fcd72a00000-7fcd72a02000 r--p 00070000 fd:00 390921                     /lib64/libfreebl3.so
7fcd72a02000-7fcd72a03000 rw-p 00072000 fd:00 390921                     /lib64/libfreebl3.so
7fcd72a03000-7fcd72a07000 rw-p 00000000 00:00 0 
7fcd72a07000-7fcd72b92000 r-xp 00000000 fd:00 390929                     /lib64/libc-2.12.so
7fcd72b92000-7fcd72d91000 ---p 0018b000 fd:00 390929                     /lib64/libc-2.12.so
7fcd72d91000-7fcd72d95000 r--p 0018a000 fd:00 390929                     /lib64/libc-2.12.so
7fcd72d95000-7fcd72d96000 rw-p 0018e000 fd:00 390929                     /lib64/libc-2.12.so
7fcd72d96000-7fcd72d9b000 rw-p 00000000 00:00 0 
7fcd72d9b000-7fcd72e1e000 r-xp 00000000 fd:00 390937                     /lib64/libm-2.12.so
7fcd72e1e000-7fcd7301d000 ---p 00083000 fd:00 390937                     /lib64/libm-2.12.so
7fcd7301d000-7fcd7301e000 r--p 00082000 fd:00 390937                     /lib64/libm-2.12.so
7fcd7301e000-7fcd7301f000 rw-p 00083000 fd:00 390937                     /lib64/libm-2.12.so
7fcd7301f000-7fcd73026000 r-xp 00000000 fd:00 390933                     /lib64/libcrypt-2.12.so
7fcd73026000-7fcd73226000 ---p 00007000 fd:00 390933                     /lib64/libcrypt-2.12.so
7fcd73226000-7fcd73227000 r--p 00007000 fd:00 390933                     /lib64/libcrypt-2.12.so
7fcd73227000-7fcd73228000 rw-p 00008000 fd:00 390933                     /lib64/libcrypt-2.12.so
7fcd73228000-7fcd73256000 rw-p 00000000 00:00 0 
7fcd73256000-7fcd73258000 r-xp 00000000 fd:00 390935                     /lib64/libdl-2.12.so
7fcd73258000-7fcd73458000 ---p 00002000 fd:00 390935                     /lib64/libdl-2.12.so
7fcd73458000-7fcd73459000 r--p 00002000 fd:00 390935                     /lib64/libdl-2.12.so
7fcd73459000-7fcd7345a000 rw-p 00003000 fd:00 390935                     /lib64/libdl-2.12.so
7fcd7345a000-7fcd73461000 r-xp 00000000 fd:00 390957                     /lib64/librt-2.12.so
7fcd73461000-7fcd73660000 ---p 00007000 fd:00 390957                     /lib64/librt-2.12.so
7fcd73660000-7fcd73661000 r--p 00006000 fd:00 390957                     /lib64/librt-2.12.so
7fcd73661000-7fcd73662000 rw-p 00007000 fd:00 390957                     /lib64/librt-2.12.so
7fcd73662000-7fcd73679000 r-xp 00000000 fd:00 390953                     /lib64/libpthread-2.12.so
7fcd73679000-7fcd73879000 ---p 00017000 fd:00 390953                     /lib64/libpthread-2.12.so
7fcd73879000-7fcd7387a000 r--p 00017000 fd:00 390953                     /lib64/libpthread-2.12.so
7fcd7387a000-7fcd7387b000 rw-p 00018000 fd:00 390953                     /lib64/libpthread-2.12.so
7fcd7387b000-7fcd7387f000 rw-p 00000000 00:00 0 
7fcd7387f000-7fcd73abc000 r-xp 00000000 fd:00 1184825                    /opt/ruby-2.1.6/lib64/libruby.so.2.1.0
7fcd73abc000-7fcd73cbc000 ---p 0023d000 fd:00 1184825                    /opt/ruby-2.1.6/lib64/libruby.so.2.1.0
7fcd73cbc000-7fcd73cc4000 rw-p 0023d000 fd:00 1184825                    /opt/ruby-2.1.6/lib64/libruby.so.2.1.0
7fcd73cc4000-7fcd73ce9000 rw-p 00000000 00:00 0 
7fcd73ce9000-7fcd73d09000 r-xp 00000000 fd:00 390922                     /lib64/ld-2.12.so
7fcd73df0000-7fcd73df7000 r--s 00000000 fd:00 913433                     /usr/lib64/gconv/gconv-modules.cache
7fcd73df7000-7fcd73efd000 rw-p 00000000 00:00 0 
7fcd73f02000-7fcd73f03000 rw-p 00000000 00:00 0 
7fcd73f03000-7fcd73f04000 ---p 00000000 00:00 0 
7fcd73f04000-7fcd73f08000 rw-p 00000000 00:00 0 
7fcd73f08000-7fcd73f09000 r--p 0001f000 fd:00 390922                     /lib64/ld-2.12.so
7fcd73f09000-7fcd73f0a000 rw-p 00020000 fd:00 390922                     /lib64/ld-2.12.so
7fcd73f0a000-7fcd73f0b000 rw-p 00000000 00:00 0 
7fffd09ac000-7fffd13ac000 rw-p 00000000 00:00 0                          [stack]
7fffd13ff000-7fffd1400000 r-xp 00000000 00:00 0                          [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0                  [vsyscall]


[NOTE]
You may have encountered a bug in the Ruby interpreter or extension libraries.
Bug reports are welcome.
For details: http://www.ruby-lang.org/bugreport.html




-- 
https://bugs.ruby-lang.org/